Bump ruff from 0.15.5 to 0.15.6 (#1386)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements_lint.txt

@@ -3,4 +3,4 @@ mypy==1.19.1
 pylint==4.0.5
 pylint-strict-informational==0.1
 pre-commit==4.5.1
-ruff==0.15.5
+ruff==0.15.6